My house had hardly any sockets when I bought it so I'm putting in a few extra ones. I am doing it the same as the existing ones, chasing out the brick walls, burying plastic conduit and using individual wires for the live, neutral and earth. They don't seem to sell brown wire so I'm using black for the live. I know they use radial circuits instead of ring mains here. In UK I would normally use 4mm cable for a radial circuit but I already knew that the Schuko sockets won't accept a 4mm cable so I bought 2.5mm. I was surprised to find the new cable is stranded, as the existing wiring is solid, like in UK. I also found that one of my new sockets, a surface mount type, won't even accept the 2.5mm wire. Does anyone know what size wires these sockets are meant to take? Perhaps the idea is to run thicker cable to junction boxes then perhaps 1.5mm from the box to the socket?